2 Place the butter and sugar in an electric mixer and beat for 8-10 minutes or until pale and creamy.

3 Add the egg, golden syrup, vanilla and flours and beat until a dough forms.

4 Roll teaspoonsful of the dough into balls and place on baking trays lined with non-stick baking paper. Lightly press to flatten.

5 Bake for 8-10 minutes or until just golden.

6 Place on a wire rack to cool completely.

7 To make the vanilla filling, place the butter, icing sugar, water and vanilla in a bowl and whisk until smooth. Spread half the biscuits with the filling and jam. Sandwich with the remaining biscuits.